2006-07-26 00:03:51 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
The heart is a pump that supplies two circulations. The left side of the heart pumps blood around the body, having received it from the lungs... the right side of the heart receives the blood from the body and pumps it to the lungs again.
Hence there are 4 chambers
Right and Left Atrium - loading pumps which contract at the last part of diastole (loading up phase) to give the ventricles maximum volume
Right and Left Ventricles - the main pumps which contract in systole (pumping phase) to pump the blood to lungs and to body
THEN
there are fuel pipes to the heart: coronary arteries
They are left and right main coronary arteries and they branch off ... branches of the left have specific names too (left anterior descending, left circumflex ... etc)
THEN
there is the electrical conducting system of the heart to keep all this coordinated.
Look it up in the page
2006-07-26 00:10:24 · answer #1 · answered by Orinoco 7 · 0⤊ 0⤋
The vessel that brings blood into the heart is called the vena cava. There are two of them, the inferior vena cava and the superior vena cava. The blood comes from the vena cava into the right atrium. When the heart beats, it pushes the blood through the tricuspid valve into the right ventricle. The next time the heart beats it pushes the blood out of the right ventricle through the pulmonary valve, and into the pulmonary artery and goes to the lungs. (This, incidentally, is the only place in the body where deoxygenated blood travels in an artery) after going through the lung and picking up oxygen, the blood goes through the pulmonary vein (the only vein with oxygenated blood) and into the left atrium. The next time the heart beats, the blood is pushed through the mitral valve and into the left ventricle. The next time it beats, it is pushed through the aortic valve into the aorta, which is the artery that takes the blood out to the rest of the body.
2006-07-26 07:14:34 · answer #2 · answered by double_nubbins 5 · 0⤊ 0⤋
Right and left ventricle, right and left atrium.
2006-07-26 07:06:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
right & left auricles , right & left ventricles , pulmonary aorta ,
tri cuspid & bicuspid ,
2006-07-26 08:48:11 · answer #4 · answered by Rao 1 · 0⤊ 0⤋
tHERE IS ONLY TWO PARTS OF HEART FIRST"LOVE" AND OTHER "HATE"
2006-07-26 07:08:00 · answer #5 · answered by Saif U 2 · 0⤊ 0⤋
this a good site to do your studing. i cant help you do your homework it would not be fair to you.http://www.heartinfo.org/ms/nav/video/main.html
2006-07-26 11:19:50 · answer #6 · answered by Bighorn 4 · 0⤊ 0⤋